Some ideas are just bad. While some thoughts on Python evolution are
constructive, some go against the basic tenets of Python so
egregiously that it would be like asking someone to run in a circle:
it gets you nowhere, even for Python 3000, where extraordinary
proposals are allowed. This PEP tries to list all BDFL pronouncements
on Python 3000 that refer to changes that will not happen and new
features that will not be introduced, sorted by topics, along with
a short explanation or a reference to the relevant thread on the
python-3000 mailing list.

If you think you should suggest any of the listed ideas it would be
better to just step away from the computer, go outside, and enjoy
yourself. Being active outdoors by napping in a nice patch of grass
is more productive than bringing up a beating-a-dead-horse idea and
having people tell you how dead the idea is. Consider yourself warned.

At one point lambda was slated for removal in Python 3000.
Unfortunately no one was able to come up with a better way of
providing anonymous functions. And so lambda is here to stay.

But it is here to stay as-is. Adding support for statements is a
non-starter. It would require allowing multi-line lambda
expressions which would mean a multi-line expression could suddenly
exist. That would allow for multi-line arguments to function
calls, for instance. That is just plain ugly.

Simple is better than complex. This idea extends to the parser.
Restricting Python's grammar to an LL(1) parser is a blessing,
not a curse. It puts us in handcuffs that prevent us from going
overboard and ending up with funky grammar rules like some other
dynamic languages that will go unnamed, such as Perl.

No braces.

This is so obvious that it doesn't need a reference to a mailing
list. Do from __future__ import braces to get a definitive
answer on this subject.

No more backticks.

Backticks (`) will no longer be used as shorthand for repr --
but that doesn't mean they are available for other uses. Even
ignoring the backwards compatibility confusion, the character
itself causes too many problems (in some fonts, on some keyboards,
when typesetting a book, etc).